Low power Haswell ITX build

just wondering whether a Win 8 OS will be able to attain the same power consumption?

And is MSI H81I ITX mobo as easy to tweak as the Asrock mobo? MSI H81I has slightly better connectors, i/o ports and 4K UHD support.

Thanks!

Quote:I've undervolted the CPU a bit and overclocked both the GPU and DRAM to 1600 MHz; everything is stable. The ASRock board has a lot of tweaking ability. It consumes 10.6W on the desktop with display on and WiFi connected, display off is 9.5W. 15.5W when playing Bluray rip.